HIGHLY CONDUCTING AND TRANSPARENT FILM AND PROCESS

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HIGHLY CONDUCTING AND TRANSPARENT FILM AND PROCESS ( highly-conducting-and-transparent-film-and-process )

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US 2020/0051709A1 Feb.13,2020 12 8.Theopticalytransparentandelectricalyconductive filmofclaim1,whereinsaidfilmexhibitsanoptical transparencenolesthan85%andshetresistancenohigher than40ohm/square. 9.Theopticalytransparentandelectricalyconductive film of claim 1, wherein said film exhibits an optical transparencenolesthan85%andshetresistancenohigher than30ohm/square. 10.Theopticalytransparentandelectricalyconductive film of claim 1, wherein said film exhibits an optical transparencenolesthan90%andshetresistancenohigher than10ohm/square. 1.Theopticalytransparentandelectricalyconductive film ofclaim 1,wherein said film exhibitsan optical transparencenolesthan90%andshetresistancenohigher than40ohm/square. 12.Theopticalytransparentandelectricalyconductive film of claim 1, wherein said film exhibits an optical transparencenolesthan95%andshetresistancenohigher than10ohm/square. 19.Anopticalytransparentandelectricalyconductive filmcomposedofmetalnanowiresorcarbonnanotubes combinedwithpristinegraphenewithametalnanowire-to grapheneorcarbonnanotube-to-grapheneweightratioof from 1/9to9/1,whereinsaidpristinegraphenecontains no oxygen and no hydrogen and is produced from direct ultrasonication,graphite disolution in asolvent,alkali metalintercalation,orsupercriticalfluidextraction,andsaid filmexhibitsanopticaltransparencenolesthan80%and shetresistancenohigherthan20ohm/square. 20.Anelectro-opticdevicecontaininganopticalytrans parentandelectricalyconductivefilm ofclaim 1asan electrode. 21.Theelectro-opticdeviceofclaim 20,whichdeviceis aphotovoltaicorsolarcel,light-emitingdiode,photo detector,touchscren,electro-wetingdisplay,liquidcrystal display,plasmadisplay,LEDdisplay,aTVscren,acom puterscren,oramobilephonescren. 2.Aprocesforproducingtheopticalytransparentand electricalyconductivefilmofclaim 1,saidprocescom prising(a)preparingasolutionorsuspensionofpristine grapheneinaliquidmedium;(b)dispersingmetalnanowires 13.Theopticalytransparentandelectricalyconductive filmofclaim1,whereinsaidfilmissuportedonatrans orcarbonnanotubesintosaidsolutionorsuspensiontoform parentsubstrate. amixturedispersion;(c)dispensinganddepositingsaid 14.Theopticalytransparentandelectricalyconductive mixturedispersionatacontroledrateontoasuporting filmofclaim1,whereinsaidfilmissuportedonatrans substrate;and(d)removingsaidliquidmediumfromsaid parentsubstrateandsaidmetalnanowiresorcarbonnano mixturedispersiondepositedonsaidsuportingsubstrateto formsaidopticalytransparentandelectricalyconductive tubesformameshormeshesthataredisposedbetwensaid pristinegrapheneandsaidtransparentsubstrate. film. 23.Aprocesforproducingtheopticalytransparentand electricalyconductivefilmofclaim1,saidprocescom prising(a)preparingafirstsolutionorsuspensionofpristine grapheneinafirstliquidmedium;(b)preparingasecond suspensionofmetalnanowiresorcarbonnanotubesina secondliquidmedium;(c)dispensinganddepositingsaid firstsolutionorsuspensionandsaidsecondsuspension, 15.Theopticalytransparentandelectricalyconductive filmofclaim1,whereinsaidmetalnanowiresorcarbon nanotubesareembeddedinsaidpristinegrapheneorsup portedonsaidpristinegraphene. 16.Theopticalytransparentandelectricalyconductive film ofclaim 1,containingbothmetalnanowiresandcarbon nanotubes. 17.Theopticalytransparentandelectricalyconductive concurentlyorsequentialy,atacontroledrateontoa filmofclaim1,whereinsaidpristinegraphenecontains suportingsubstrate;and(d)removingsaidfirstliquid single-crystalineorsingle-graingrapheneproducedby mediumandsaidsecondliquidmediumtoformsaidopti directultrasonication,graphitedisolutioninasolvent, calytransparentandelectricalyconductivefilm. alkalimetalintercalation,orsupercriticalfluidextraction. 24.Theprocesofclaim 23,whereinsaidstep(c)includes 18.Theopticalytransparentandelectricalyconductive dispensinganddepositingsaidsecondsuspensionpriorto filmofclaim1,whereinsaidcarbonnanotubesorsaidmetal dispensinganddepositingsaidfirstsuspensiontoproducea nanowiresformameshormultiplemeshesandsaidpristine layerofmetalnanowiresorcarbonnanotubescoveredbya graphenecontainssingle-layergrapheneorfew-layergra layerofpristinegrapheneinsaidopticalytransparentand phene,lesthan10grapheneplanes,eachhavingasingle electricalyconductivefilm. grainandcontainsnooxygenandnohydrogen.

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